Bottle-stopper.



No. 7|5,880.. Patented nec. l6, Q02.

A. &.IP. SGHROEDTER. v

BOTTLE STOPPER.

Applicatiqn filed Nov. 19; 1900.)

(No mm.)

@MZ/YW UNITED STATES PATENT OFFICE.

AUGUST SOHROEDTER AND PAUL SCHROEDTER, OF BERLIN, GERMANY.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 715,880, dated December 16, 1902.

Application filed llovember 19, 1900. Serial No. 37,057 (No model.)

To all whom it petty concern:

Be it known that we, AUGUST SOHROEDTER and PAUL SCHROEDTER, subjects ofthe German Emperor, residing at 65 Oranienstrasse, Berlin, in the Empire of Germany, have invented certain new and useful Improvements in Bottle-Stoppers, (for which we have made application for patent in Germany on August 7, 1900;) and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 4

This invention relates to improvements in the well-known wire-lever stoppers for beer and Seltzer-water bottles. The stoppers hitherto used consist of a porcelain knob with shank beneath for the reception of an indiarubber packing-ring. The stopper according to this invention, on the contrary, is so ar ranged that instead of the india-rubber packing, which when warm is sticky and odorous, packing-rings made of cork are used, cork being recognized as the most wholesome and cleanest packing material. It is necessary that the cork rings should be previously made impermeable-for instance, by being impregnated with pine-resin pitch or the like. The bottom of the ring, which efiects the packing, is freed from the adhesive material by being smoothed or cut away, or a second thinner cork disk is put over it. It is further necessary so to connect the cork disk with the closing-cover that the cork disk cannot fall out or when adhesively attached to the mouth of the bottle cannot be torn away. These requirements are fully met by the stopper forming the object of this invention and illustrated in vertical section in the accompanying drawing.

The stopper, as shown, consists of the metal ring a, which is furnished below with the turned-under rim 1), in the middle with the annular projection c, and above the same with shown in the drawing.

openings (1 for aitording a hold to the lever e belonging to the wire-lever closing device, which forms no part of this invention and is not shown. In the bottom of the ring a. the metal disk f and the impermeable cork disk 9 are inserted. The rim b of the ring a is bent round in such a manner that it keeps the outer edge of the cork disk 9 air-tight and firmly against the disk f and presses the latter against the shoulder a. An air-tight closing is only secured when the distance of the rim 1) from the intermediate disk fisless than the thickness of the cork disk 9. When the rim 1) is laid around or when the cork disk 9 is pressed in between the previously-turned rim 6 and the previously-inserted disk f, the

outer edge of the cork disk 9 will be nar-' rowed, while the middle part will be thickened and caused to bulge outward, as plainly The cap 71. of the cover is formed with a turned edge 71 and is forced together tightly onto the ring ct. The openings d in the ring a extend to .its upper edge, as shown.

What we claim, and desire to secure by Letters Patent, is-

A stopper-cover for mechanical bottle-stoppers comprising a cylindrical ring with inwardly-flanged lower edge, a central internal shoulder, supporting and packing disks held between the said flanged lower edge and central shoulder, open slots in the upper part of the ring for the insertion of the stopper-wire and a detachably-connected cap for securing the said wire, all substantially as and for the purpose set forth.

In testimony whereof We have aflixed our signatures in presence of two witnesses.

AUGUST SCHROEDTER. PAUL SCHROEDTER.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT. 

